Electrochemical impedance behavior of graphite-dispersed electrically conducting acrylic coating on AZ31 magnesium alloy in 3.5 wt.% NaCl solution

V. S. Raja; A. Venugopal; V. S. Saji; K. Sreekumar; R. Suseelan Nair; M. C. Mittal

doi:10.1016/j.porgcoat.2009.09.008

Electrochemical impedance behavior of graphite-dispersed electrically conducting acrylic coating on AZ31 magnesium alloy in 3.5 wt.% NaCl solution

V. S. Raja^*
, A. Venugopal
, V. S. Saji
, K. Sreekumar
, R. Suseelan Nair
, M. C. Mittal

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

26 Scopus citations

Abstract

The paper deals with understanding the electrochemical impedance behavior of (a) chromate coating (b) electrically conducting polymer coating and (c) polyurethane coating under different combinations applied over AZ31 magnesium alloy in an effort to develop a conducting organic coating that can offer corrosion protection as well as electrical conductivity. The study indicates that dispersion of graphite in acrylic coating though significantly brings down the electrical resistance; application of such a coating on the magnesium alloy does not offer good resistance against corrosion. In order to gain both the corrosion resistance as well as electrical conductivity an intermediate coating such as polyurethane needs to be provided. The paper discusses the electrochemical impedance behavior of the above coatings.

Original language	English
Pages (from-to)	12-19
Number of pages	8
Journal	Progress in Organic Coatings
Volume	67
Issue number	1
DOIs	https://doi.org/10.1016/j.porgcoat.2009.09.008
State	Published - Jan 2010
Externally published	Yes

Keywords

AZ31 Mg alloy
Conducting paint
Corrosion
Electrochemical impedance spectroscopy

ASJC Scopus subject areas

General Chemical Engineering
Surfaces, Coatings and Films
Organic Chemistry
Materials Chemistry

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10.1016/j.porgcoat.2009.09.008

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title = "Electrochemical impedance behavior of graphite-dispersed electrically conducting acrylic coating on AZ31 magnesium alloy in 3.5 wt.\% NaCl solution",

abstract = "The paper deals with understanding the electrochemical impedance behavior of (a) chromate coating (b) electrically conducting polymer coating and (c) polyurethane coating under different combinations applied over AZ31 magnesium alloy in an effort to develop a conducting organic coating that can offer corrosion protection as well as electrical conductivity. The study indicates that dispersion of graphite in acrylic coating though significantly brings down the electrical resistance; application of such a coating on the magnesium alloy does not offer good resistance against corrosion. In order to gain both the corrosion resistance as well as electrical conductivity an intermediate coating such as polyurethane needs to be provided. The paper discusses the electrochemical impedance behavior of the above coatings.",

keywords = "AZ31 Mg alloy, Conducting paint, Corrosion, Electrochemical impedance spectroscopy",

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doi = "10.1016/j.porgcoat.2009.09.008",

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AU - Raja, V. S.

AU - Venugopal, A.

AU - Saji, V. S.

AU - Sreekumar, K.

AU - Nair, R. Suseelan

AU - Mittal, M. C.

PY - 2010/1

Y1 - 2010/1

N2 - The paper deals with understanding the electrochemical impedance behavior of (a) chromate coating (b) electrically conducting polymer coating and (c) polyurethane coating under different combinations applied over AZ31 magnesium alloy in an effort to develop a conducting organic coating that can offer corrosion protection as well as electrical conductivity. The study indicates that dispersion of graphite in acrylic coating though significantly brings down the electrical resistance; application of such a coating on the magnesium alloy does not offer good resistance against corrosion. In order to gain both the corrosion resistance as well as electrical conductivity an intermediate coating such as polyurethane needs to be provided. The paper discusses the electrochemical impedance behavior of the above coatings.

AB - The paper deals with understanding the electrochemical impedance behavior of (a) chromate coating (b) electrically conducting polymer coating and (c) polyurethane coating under different combinations applied over AZ31 magnesium alloy in an effort to develop a conducting organic coating that can offer corrosion protection as well as electrical conductivity. The study indicates that dispersion of graphite in acrylic coating though significantly brings down the electrical resistance; application of such a coating on the magnesium alloy does not offer good resistance against corrosion. In order to gain both the corrosion resistance as well as electrical conductivity an intermediate coating such as polyurethane needs to be provided. The paper discusses the electrochemical impedance behavior of the above coatings.

KW - AZ31 Mg alloy

KW - Conducting paint

KW - Corrosion

KW - Electrochemical impedance spectroscopy

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DO - 10.1016/j.porgcoat.2009.09.008

M3 - Article

AN - SCOPUS:70449108115

SN - 0300-9440

VL - 67

SP - 12

EP - 19

JO - Progress in Organic Coatings

JF - Progress in Organic Coatings

IS - 1

ER -

Electrochemical impedance behavior of graphite-dispersed electrically conducting acrylic coating on AZ31 magnesium alloy in 3.5 wt.% NaCl solution

Abstract

Keywords

ASJC Scopus subject areas

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